IT1230187B - Dispositivo circuitale per elevare la transconduttanza di uno stadio amplificatore differenziale comprendente transistori mos. - Google Patents

Dispositivo circuitale per elevare la transconduttanza di uno stadio amplificatore differenziale comprendente transistori mos.

Info

Publication number
IT1230187B
IT1230187B IT8920317A IT2031789A IT1230187B IT 1230187 B IT1230187 B IT 1230187B IT 8920317 A IT8920317 A IT 8920317A IT 2031789 A IT2031789 A IT 2031789A IT 1230187 B IT1230187 B IT 1230187B
Authority
IT
Italy
Prior art keywords
transconductance
elevate
differential amplifier
circuit device
mos transistors
Prior art date
Application number
IT8920317A
Other languages
English (en)
Italian (it)
Other versions
IT8920317A0 (it
Inventor
Germano Nicollini
Rinaldo Castello
Original Assignee
Sgs Thomson Microelectronics
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sgs Thomson Microelectronics filed Critical Sgs Thomson Microelectronics
Priority to IT8920317A priority Critical patent/IT1230187B/it
Publication of IT8920317A0 publication Critical patent/IT8920317A0/it
Priority to EP90106132A priority patent/EP0394703B1/de
Priority to DE69024089T priority patent/DE69024089T2/de
Priority to JP2107698A priority patent/JPH0364109A/ja
Priority to US07/768,457 priority patent/US5136258A/en
Application granted granted Critical
Publication of IT1230187B publication Critical patent/IT1230187B/it

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/45—Differential amplifiers
    • H03F3/45071—Differential amplifiers with semiconductor devices only
    • H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
    • H03F3/45179—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using MOSFET transistors as the active amplifying circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/45—Differential amplifiers
    • H03F3/45071—Differential amplifiers with semiconductor devices only
    • H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
    • H03F3/45179—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using MOSFET transistors as the active amplifying circuit
    • H03F3/45183—Long tailed pairs
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45026—One or more current sources are added to the amplifying transistors in the differential amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45036—Indexing scheme relating to differential amplifiers the differential amplifier amplifying transistors are single transistors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45192—Indexing scheme relating to differential amplifiers the differential amplifier contains current mirrors comprising diodes which act as a load for the differential amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45251—Indexing scheme relating to differential amplifiers the dif amp has a cross coupling circuit in the source circuit of the amplifying transistors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45288—Differential amplifier with circuit arrangements to enhance the transconductance
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45318—Indexing scheme relating to differential amplifiers the AAC comprising a cross coupling circuit, e.g. two extra transistors cross coupled
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45658—Indexing scheme relating to differential amplifiers the LC comprising two diodes of current mirrors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Networks Using Active Elements (AREA)
IT8920317A 1989-04-28 1989-04-28 Dispositivo circuitale per elevare la transconduttanza di uno stadio amplificatore differenziale comprendente transistori mos. IT1230187B (it)

Priority Applications (5)

Application Number Priority Date Filing Date Title
IT8920317A IT1230187B (it) 1989-04-28 1989-04-28 Dispositivo circuitale per elevare la transconduttanza di uno stadio amplificatore differenziale comprendente transistori mos.
EP90106132A EP0394703B1 (de) 1989-04-28 1990-03-30 Schaltungsanordnung zur Erhöhung der Transkonduktanz einer Differenzverstärkerstufe mit MOS-Transistoren
DE69024089T DE69024089T2 (de) 1989-04-28 1990-03-30 Schaltungsanordnung zur Erhöhung der Transkonduktanz einer Differenzverstärkerstufe mit MOS-Transistoren
JP2107698A JPH0364109A (ja) 1989-04-28 1990-04-25 差動増幅回路
US07/768,457 US5136258A (en) 1989-04-28 1991-09-30 Circuit arrangement for enhancing the transconductance of a differential amplifier stage comprising MOS transistors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8920317A IT1230187B (it) 1989-04-28 1989-04-28 Dispositivo circuitale per elevare la transconduttanza di uno stadio amplificatore differenziale comprendente transistori mos.

Publications (2)

Publication Number Publication Date
IT8920317A0 IT8920317A0 (it) 1989-04-28
IT1230187B true IT1230187B (it) 1991-10-18

Family

ID=11165685

Family Applications (1)

Application Number Title Priority Date Filing Date
IT8920317A IT1230187B (it) 1989-04-28 1989-04-28 Dispositivo circuitale per elevare la transconduttanza di uno stadio amplificatore differenziale comprendente transistori mos.

Country Status (4)

Country Link
EP (1) EP0394703B1 (de)
JP (1) JPH0364109A (de)
DE (1) DE69024089T2 (de)
IT (1) IT1230187B (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3380371B2 (ja) * 1995-06-22 2003-02-24 三菱電機株式会社 広帯域増幅器
GB9516025D0 (en) * 1995-08-04 1995-10-04 Philips Electronics Uk Ltd Amplifier
JP4667781B2 (ja) * 2004-07-21 2011-04-13 ルネサスエレクトロニクス株式会社 電流源回路及び差動増幅器
CN112088488B (zh) * 2018-05-10 2024-07-26 索尼半导体解决方案公司 放大器电路

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6908784A (de) * 1969-06-10 1970-12-14
JPS62192997A (ja) * 1986-02-20 1987-08-24 Toshiba Corp カレントミラ−型センスアンプ
US4720685A (en) * 1986-09-02 1988-01-19 Tektronix, Inc. FET transconductance amplifier with improved linearity and gain
GB2211044A (en) * 1987-10-08 1989-06-21 Plessey Co Plc Linear differential amplifier

Also Published As

Publication number Publication date
EP0394703B1 (de) 1995-12-13
DE69024089D1 (de) 1996-01-25
EP0394703A2 (de) 1990-10-31
DE69024089T2 (de) 1996-05-09
JPH0364109A (ja) 1991-03-19
EP0394703A3 (de) 1991-02-06
IT8920317A0 (it) 1989-04-28

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970429